/* -*-c++-*-
* Copyright (C) 2009 Cedric Pinson
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#include
#include
#include
using namespace osgAnimation;
UpdateMatrixTransform::UpdateMatrixTransform( const UpdateMatrixTransform& apc,const osg::CopyOp& copyop) : osg::Object(apc,copyop), AnimationUpdateCallback(apc, copyop)
{
_transforms = StackedTransform(apc.getStackedTransforms(), copyop);
}
UpdateMatrixTransform::UpdateMatrixTransform(const std::string& name) : AnimationUpdateCallback(name)
{
}
/** Callback method called by the NodeVisitor when visiting a node.*/
void UpdateMatrixTransform::operator()(osg::Node* node, osg::NodeVisitor* nv)
{
if (nv && nv->getVisitorType() == osg::NodeVisitor::UPDATE_VISITOR)
{
osg::MatrixTransform* matrixTransform = dynamic_cast(node);
if (matrixTransform)
{
// here we would prefer to have a flag inside transform stack in order to avoid update and a dirty state in matrixTransform if it's not require.
_transforms.update();
const osg::Matrix& matrix = _transforms.getMatrix();
matrixTransform->setMatrix(matrix);
}
}
traverse(node,nv);
}
bool UpdateMatrixTransform::link(osgAnimation::Channel* channel)
{
const std::string& channelName = channel->getName();
// check if we can link a StackedTransformElement to the current Channel
for (StackedTransform::iterator it = _transforms.begin(); it != _transforms.end(); ++it)
{
StackedTransformElement* element = it->get();
if (element && !element->getName().empty() && channelName == element->getName())
{
Target* target = element->getOrCreateTarget();
if (target && channel->setTarget(target))
return true;
}
}
osg::notify(osg::INFO) << "UpdateMatrixTransform::link Channel " << channel->getName() << " does not contain a symbolic name that can be linked to a StackedTransformElement." << std::endl;
return false;
}